Oculus wizards are relatively rare spawns, and so this quest is often considered too time-consuming to be worth it. For those intent on doing it, the oculus wizards can be found in the following locations.

Wandering a central hallway at ( 39, -17, -108 ) /waypoint 39, -17, -108 - at this location they're on a shared spawn with 3 other types of 'oculus' evil eyes. Four eyes will be up at any one time.